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157512030 = 23513403877
BaseRepresentation
bin10010110001101…
…11000101011110
3101222101102212220
421120313011132
5310310341110
623344010210
73621554514
oct1130670536
9358342786
10157512030
1180a03135
1244900966
132682c1b0
1416cc24b4
15dc65370
hex963715e

157512030 has 32 divisors (see below), whose sum is σ = 407109024. Its totient is φ = 38772096.

The previous prime is 157512013. The next prime is 157512031. The reversal of 157512030 is 30215751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157512031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201549 + ... + 202328.

It is an arithmetic number, because the mean of its divisors is an integer number (12722157).

Almost surely, 2157512030 is an apocalyptic number.

157512030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157512030 is an abundant number, since it is smaller than the sum of its proper divisors (249596994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157512030 is a wasteful number, since it uses less digits than its factorization.

157512030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403900.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 157512030 is about 12550.3796755317. The cubic root of 157512030 is about 540.0548983967.

Adding to 157512030 its reverse (30215751), we get a palindrome (187727781).

The spelling of 157512030 in words is "one hundred fifty-seven million, five hundred twelve thousand, thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 403877 807754 1211631 2019385 2423262 4038770 5250401 6058155 10500802 12116310 15751203 26252005 31502406 52504010 78756015 157512030